Rotational isomerism in acetic acid: the first experimental observation of the high-energy conformer |
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| Authors: | Maçôas Ermelinda M S Khriachtchev Leonid Pettersson Mika Fausto Rui Räsänen Markku |
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| Affiliation: | Laboratory of Physical Chemistry, P.O. Box 55, FIN-00014 University of Helsinki, Finland. |
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| Abstract: | The high-energy conformer of acetic acid (cis-AA) is produced in an Ar matrix by vibrational excitation of the OH stretching overtone of the ground conformational state (trans-AA). IR-absorption spectroscopy provides a clear identification of the reaction product. cis-AA converts back to trans-AA in a time scale of minutes at 8 K by tunneling. |
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